Evidence map›Paper›PMID 23790218›Full record

ArticleTissue engineering. Part A2013

Proangiogenic hydrogels within macroporous scaffolds enhance islet engraftment in an extrahepatic site.

Ann-Christina Brady, Mikaël M Martino, Eileen Pedraza, Steve Sukert, Antonello Pileggi, Camillo Ricordi, Jeffrey A Hubbell, Cherie L Stabler

Open access · greenAbstract read
In one paragraph

Article in Tissue engineering. Part A, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed
4.6field-weighted citation impact, top 5% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

34 citing papers in PubMed, 78 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors at 2 institutions in 2 countries.

Ann-Christina Brady1 Diabetes Research Institute, University of Miami , Miami, Florida.
Mikaël M Martino
Eileen Pedraza
Steve Sukert
Antonello Pileggi
Camillo Ricordi
Jeffrey A Hubbell
Cherie L Stabler
University of Miami · USÉcole Polytechnique Fédérale de Lausanne · CH

Funding

Development of "Active" Biomaterial Scaffolds for Islet TransplantationF31EB008970 · NIBIB · UNIVERSITY OF MIAMI CORAL GABLES · PI PEDRAZA, EILEEN · 2009 to 2010
$70k
NIBIB NIH HHS 1F311EB008970-01A1
6 · The paper itself

Abstract

The transplantation of allogeneic islets in recent clinical trials has shown substantial promise as a therapy for type 1 diabetes; however, long-term insulin independence remains inadequate. This has been largely attributed to the current intravascular, hepatic transplant site, which exposes islets to mechanical and inflammatory stresses. A highly macroporous scaffold, housed within an alternative transplant site, can support an ideal environment for islet transplantation by providing three-dimensional distribution of islets, while permitting the infiltration of host vasculature. In the present study, we sought to evaluate the synergistic effect of a proangiogenic hydrogel loaded within the void space of a macroporous poly(dimethylsiloxane) (PDMS) scaffold on islet engraftment. The fibrin-based proangiogenic hydrogel tested presents platelet derived growth factor (PDGF-BB), via a fibronectin (FN) fragment containing growth factor and major integrin binding sites in close proximity. The combination of the proangiogenic hydrogel with PDMS scaffolds resulted in a significant decrease in the time to normoglycemia for syngeneic mouse islet transplants. This benefit was associated with an observed increase in competent vessel branching, as well as mature intraislet vessels. Overall, the addition of the proangiogenic factor PDGF-BB, delivered via the FN fragment-functionalized hydrogel, positively influenced the efficiency of engraftment. These characteristics, along with its ease of retrieval, make this combination of a biostable macroporous scaffold and a degradable proangiogenic hydrogel a supportive structure for insulin-producing cells implanted in extrahepatic sites.

Indexed as

Islets of Langerhans TransplantationAllograftsAngiogenesis Inducing AgentsAnimalsBecaplerminDimethylpolysiloxanesHydrogelsIslets of LangerhansMiceNylonsPorosityProto-Oncogene Proteins c-sisAngiogenesis Inducing AgentsBecaplerminDimethylpolysiloxanesHydrogelsNylonspoly(dimethylsiloxane)-polyamide copolymerProto-Oncogene Proteins c-sis

Identifiers

PMID23790218
PMCPMC3856929
OpenAlexW2112348925

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.